Portable camp stove



y 5 1951 E. E. MANKINS I 2,552,683

PORTABLE CAMP STOVE Filed March 3, 1948 I 5/00/2 x5. Man/617.;

' v INVENTOR.

Patented May 15, 1951 UNITED STATES ZPAEEN? GFFEQE PORTABLE CAMP STOVE Eldon E. Mankins, Broken Arrow, Okla.

Application March 3, 1948, Serial No. 12,827

2 Claims. l

The invention relates to portable camp stoves, and has for its object to rovide a device of this kind, adapted for operation by butane or propane as a fuel, and constructed in a manner to comply with regulations on devices of this character, and for outside use, as distinguished from the complicated devices necessary, where used indoors.

A further object is to provide a camp stove comprising end members between which members the fuel tank is gripped and allowed to partially rotate, and a filling connection for said tank to one side of the tank, and which filling connection can be rotated to a vertical position for connection to branch pipes leading to the stove burners.

A further object is to provide the filling connection of the tank with a valve, which valve, when the connection is moved and connected to the burner branch pipes, may be operated to regulate or cut off the flow to the burners.

A further object is to provide the tank with an exhaust valve which acts as a bleeder when the tank is recharged and when the butane, in liquid form, exhausts, which complies with regulations of pressure vessels.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise enihodiment of the invention ma be made within the scope of what is claimed, without departing from the spirit of the invention.

In the drawing:

Figure 1 is a vertical longitudinal sectional View through the stove.

Figure 2 is an end view of the stove.

Normally, stoves or heaters using butane or propane as a fuel are permanent installations, and to comply with the many regulations it is necessary to equip the system with expensive regulators, located in a remote location, in relation to the house. These regulators are to compensate and maintain a certain pressure in the line, which pressure fluctuates due to temperature changes outside where the tank is located. The laws of various States require a certain pres-- sure at the stove. The present stove, however, is used as a portable stove for camping and the like, outdoors, consequently the necessity for expensive regulators and safety devices is not necessary.

Referring to the drawing, the numeral designates the top of the stove, 2 the cooking grids 2 and 3 burners beneath the grids. The burners 3 are supported by brackets i, carried by the end frames 5 of stove, the lower ends of the frames adapted to rest upon the ground or a sup port.

Extending longitudinally between the frames 5 is the gas tank 6, the ends of which tank are convexed and rotatably mounted in concavities 1 in the end frames. Connecting the end frames 5 are tie rods 8, which rods may be loosened for partially rotating the tank to the position shown in Figure 2 for the filling operation. When the tank is being filled, the filling connection ii is in a horizontal position resting on one of the tie rods S, as shown in Figure 2. The filling connection 9 is provided with a main valve iii and a union H, which union may be coupled to any kind of hose supply. Disposed on the tank 6 at ninety degrees from the connection 9 is an exhaust valve E2. in butane and propane installations it is required to have the tank equipped with what is called a ten per cent valve, and this valve carries an extension l3, which projects downwardly into the tank a distance of one tenth the vertical height of the vessel or tank 6. This acts as a bleeder valve, opened when the recharge of the tank is taking place, and when the butane in liquid form exhausts and the valve ll] closed, and then the ten per cent valve is closed. This leaves a gas pocket of ten per cent in the chamber to take care of the expansion of the butane caused by temperature rise. After the tank has been filled and the valves closed thereon, the tank is rotated until the connection 9 is in a vertical position as shown in Figure l. The union l I is then connected to the T fitting M, which is further connected to burner control valves 25, controlling the flow of gas to the burners 3. Following this connection the valve it is opened and either or both valves l5 opened according to the desired use of the burners 3. It will be noted that the main control it; can be easily reached for regulation and for cutting ofi the flow of gas at a single source, and within. easy reach of the operator.

It will be noted that one of the tie rods 8 limits the rotation of the connection 9 to the filling position and the valve i2 will contact the other tie rod 6 to limit the position of the connection 9 so the connection 9 will register with the T-connection l4.

From the above it will be seen that a camp stove is provided wherein a gaseous fuel is used from a storage tank, and that the storage tank is mounted to the stove frame in a manner supporting said plate, opposite concave tank end receiving depressions in the inner sides of said end frames, a longitudinally extending fuel tank supported between the end frames, the ends of said tank being convexed and having rotative connection in the concaved depressions in the end frames, and adapted to be partially rotated, a combined filling and discharge connection carried by said tank and rotatable therewith, burner means beneath the grill plate, a supply pipe leading to the burner means, said supply pipe having its intake end above the tank and in the transverse plane of the combined filling and discharge pipe, means for connecting combined filling and discharge pipe to the supply pipe leading to the burner means when the tank is partially rotated and tie rods connecting end frames and forming means whereby said tank may be allowed to rotate or held against rotation.

2. A device as set forth in claim 1 including an exhaust and air trapping valve carried by the tank and positioned whereby said valve is on top of the tank when the combined filling and supply pipe is in horizontal position and to the side of the tank when the combined filling and supply pipe is connected to the burner supply pipe.

ELDON E. MANKINS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 401,980 Thayer Apr. 23, 1889 786,944 Barrie Apr. 11, 1905 1,551,788 Benson Sept. 1, 1925 1,653,867 McKeown Dec. 27, 1927 1,987,603 Claesson Jan. 15, 1935 FOREIGN PATENTS Number Country Date 103,302 Germany May 10, 1926 190,374 Switzerland Apr. 30, 1937 

